1. Isikhumba sendalo sifanelekile kwimveliso yamashishini amakhulu, kwaye iyakwazi ukulungelelaniswa ngamandla ahlukeneyo, umbala, ukukhanya, ipateni, ipateni kunye nezinye iimveliso ngokweemfuno zabathengi, kunye nomgangatho wemveliso ozinzile kunye nohambelanayo.
2. Ixabiso eliphantsi lokuvelisa kunye nexabiso elizinzile.Imithombo yempahla ekrwada efunekayo ekuveliseni ufele olungeyonyanisiweyo ibanzi kwaye izinzile, ezinokuhlangabezana nemfuno yemarike.
3. Ngenxa yeempawu zemiphetho ecocekileyo kunye neempawu zomzimba ezifanayo zesikhumba sendalo, ukusebenza kakuhle kokusika kuphezulu kwaye izinga lokusebenzisa ukusika liphezulu.Imela enye yesikhumba eyenziweyo inokusika iileya ezininzi, kwaye ifanelekile kumatshini wokusika ngokuzenzekelayo;Isikhumba sendalo sinokunqunyulwa kuphela kwinqanaba elilodwa, kwaye iziphene zesikhumba zendalo kufuneka zigwenywe xa usika.Ngexesha elifanayo, iimela kufuneka zicwangciswe ngokwezinto ezingaqhelekanga zesikhumba, ngoko ke ukusebenza kakuhle kokusika kuphantsi.
4. Ubunzima besikhumba sokwenziwa bukhaphukhaphu kunobo besikhumba sendalo, kwaye akukho ziphene zokuzalwa zendalo ezifana nenundu etyiweyo kunye nokungunda.
5. Ukumelana ne-asidi elungileyo, ukuxhathisa kwe-alkali kunye nokunyanzeliswa kwamanzi, ngaphandle kokucima kunye nokuguqulwa kwebala.